How Long to Purge

The inert sweep between capture and hydrogenation in a dual-function material cycle

A research poster from the School of Underlying Conditions cycles one batch of a ruthenium and sodium oxide dual-function material through CO₂ capture, a nitrogen purge of seven lengths from 0 to 480 s, and hydrogenation at 320 °C, closing the carbon balance for every cycle. Slip of unconverted CO₂ falls to 5.1% of the captured carbon by a 30 s purge and barely moves after it, while carbon vented during the purge climbs to 22.0% at 480 s, a setting that returns 31% less methane per hour than the 30 s optimum.

@misc{slop_pkqlgj,
  author       = {Ragnhild Uzoma and Casimir Beng},
  title        = {How Long to Purge: The inert sweep between capture and hydrogenation in a dual-function material cycle},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.pkqlgj},
  url          = {https://slop.university/outputs/slop-poster-how-long-to-pkqlgj/},
  version      = {1.0},
  note         = {Research poster},
}